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A tropical fever once believed to be caused by the heat.
(Pathology) a mild fever of tropical climates, similar in its symptoms to sunstroke
[C16: from Spanish calentura fever, ultimately from Latin calēre to be warm]
cal•en•ture(ˈkæl ən tʃər, -ˌtʃʊər)
a violent fever with delirium, affecting persons in the tropics.
[1585–95; earlier calentura < Sp: fever]
a tropical f ever accompanied by delirium.See also: Disease and Illness